Kittinger 1987.

Methods	RCT
Participants	Number of participants randomised: 70 Inclusion criteria: all patients requiring feeding tube placement were considered eligible, including diabetic patients Exclusion criteria: pregnant in‐patients and intensive care patients
Interventions	35 participants received metoclopramide 10 mg in 2 ml volume intramuscularly 35 participants received 2 ml of diluent as placebo. Either metoclopramide or placebo was administered immediately after insertion of the feeding tube
Outcomes	Success rate of post‐pyloric tube placement evaluated by abdominal radiography 1 hour after insertion of the feeding tube
Notes	Setting: North Carolina,USA
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Generation of the allocation sequence: random number table
Allocation concealment (selection bias)	Unclear risk	Concealment of allocation sequence not described
Blinding (performance bias and detection bias) All outcomes	Unclear risk	Double‐blind method: not described
Incomplete outcome data (attrition bias) All outcomes	Low risk	There are no withdrawals or dropouts
Selective reporting (reporting bias)	Low risk	All outcomes reported
Other bias	Unclear risk	Sample size calculation was not reported